diff --git a/tal-lib/font.tal b/tal-lib/font.tal
index 61d083a..cf59bbf 100644
--- a/tal-lib/font.tal
+++ b/tal-lib/font.tal
@@ -12,11 +12,11 @@ BRK
   BRK
   &adv
     #fa DBG
-    INC
+    DEC
   BRK
   &back
     #fb DBG
-    DEC
+    INC
   BRK
 
 ( sprite and text drawing routines )
@@ -42,7 +42,7 @@ BRK
     SWP SWP2 ( x y nibble counter -- )
     DUP ,&lp JCN
   POP2 ( x y nibble counter -- x y )
-  SWP #04 SUB SWP
+  SWP #04 SUB SWP ( restore x coord )
   JMP2r
 
 ( 4x4 sprite output from the memory )